2.5" Abripedic Gel Memory Foam Mattress Topper (Twin) Abripedic 2.5 inch Gel infused memory foam help you sleep 33% cooler than regular memory foam toppers. Ventilated cool technology and 3D Mesh mattress cover enhance breath-ability and eliminates hot spots helping to regulate the sleeping surface to keep you cooler and more comfortable The Aloe Vera Extract Treated cover material of the mattress topper is skin protective and has skin care and moisturizing effects. 3 year Warranty Twin: 38 inches wide x 75 inches long , Twin XL : 38 inches x 80 inches long Full: 53 inches wide x 75 inches long, Queen: 60 inches wide x 80 inches long, King: 76 inches wide x 80 inches long, California king: 72 inches wide x 84 inches long The soft, luxurious zip-off cover is machine washable and resistant to allergens and mites.